/*
 * Copyright 2008 Zoundry LLC, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package org.zoundry.gaedt.services.applications;

import org.zoundry.gaedt.core.models.application.ZGaeApplicationModel;

/**
 * Factory used to create {@link IZGaeApplication}s.
 */
public class ZGaeApplicationFactory
{
    /** The static singleton instance. */
    private static final ZGaeApplicationFactory sInstance = new ZGaeApplicationFactory();

    /**
     * The singleton accessor.
     */
    public static final ZGaeApplicationFactory getInstance()
    {
        return sInstance;
    }

    /**
     * Creates an {@link IZGaeApplication} from the application model.
     * 
     * @param aModel
     */
    public IZGaeApplication createApplication(ZGaeApplicationModel aModel)
    {
        if ("python".equals(aModel.getRuntimeType()))
            return new ZGaePythonApplication(aModel);
        else
            throw new IllegalArgumentException("Factory couldn't create a Google Application of type "
                    + aModel.getRuntimeType() + ".");
    }
}
